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| Communications Technologies, Inc. | |
| ConnectPress Technical Trade Journal Publishing Group | ||
| Kerrwil Publications Ltd. | ||
| NASA Tech Briefs | ||
| Desktop Engineering | ||
| ConnectPress Technical Trade Journal Publishing Group | ||
| Time Compression Technologies | ||
| CAD Systems | ||
| Pro/E: The Magazine | ||
| Solid Solutions | ||
| Helmers Publishing, Inc. - - - | ||
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